Closure plug wrench



Aug. 28, 1945. F} J TQMSEK CLOSURE PLUG WRENCH 2 $heetS-Sheet 1 Filed March 18, 1943 5mm 72m? INVENTOR.

ATTD R N EYE Aug. 28, 1945 i F J ITOMSEK f 2,383,573

CLOSURE PLUG WRENCH Filed March 18, 1945 2 Sheets-Sheet 2 1 751775 INVENTOR.

Patented Aug. 28, 1945 UNlTE-D STATE CLOSURE PLUG WRENCH Frank J. Tomsek, Detroit, Mich. Application March 18, 1943, Serial No. 479,647 .1 Claim. (01. 81 -71) My invention relates to the application and removal of threaded caps and plugs of the type employed in oil drums and the'like, and has among its objects and advantages the provision of an improved plug tool designed to facilitate turning of such closures, wherein the device is so designed as to be applicable to a large range of sizes and shapes.

In the accompanying drawings:

Figure 1 is a side view of one part of the tool.

Figure 2 is a View taken from the positionindicated by line 2-2 of Figure 1.

Figure 3 is a fragmentary view of the tool part illustrating the same applied to a screw cap.

Figure 4 is a sectional view taken along the line 4-4 of Figure 3.

Figure 5 is an enlarged sectional view of a screw plug illustrating the manner in which a metallic cap may be ruptured with one end of the tool part of Figure 1.

Figure 6 is an end view of a different form of screw plug illustrating a second tool part employed in conjunction with the art of Figure 1.

Figure '7 is a side view illustrating the assembled relationship between the tool parts of Figures l and 6.

Figure 3 is a side view of the tool part of Figure 6.

Figure 9 is an end view of the tool part of Figure 8.

Figure 10 is a view of the opposite end.

Figure 11 is a view illustrating theapplication of the tool part of Figure 8 to one type of screw plug.

Figure 12 is a similar view in connection with another form of screw plug.

Figure 13 illustrates the tool part of Figure 8 in conjunction with another type of screw plug.

Figure 14 illustrates the tool part applied to a further modified form of screw plug.

Figure 15 illustrates its application to another type of screw-plug, and

Figure 16 is a sectional view along the line l6-l6 of Figure 15.

In the embodiment of the invention selected for illustration, Figure 1 illustrates a tool part II] comprising a rod or handle l2 having a cold chisel formation 1 4 at one end. The opposite end of the handle I2 is slightly rounded as at Hi to provide a striking face. A right angular wrench member I8 is welded to the handle l2- a short distance inwardly from the strinking face Hi. This wrench is provided with a slot 20 in its end so arranged as to provide two spacedand similar- 1y shaped fingers 22. The slot 20 is extended a short distance up the sides of the wrench member l8, as at 24.

Figures 3 and 4 illustrate the application of the wrench member l8 to a screw cap or plug 26 threaded into the neck 28 on the end wall 30 of a drum 32. Such end walls are usually placed a slight distance inwardly from the end of the drum. The plug 26 includes a depression or socket formation 34 in its outer end, with two lugs.

36 projecting inwardly from the sidewall of the depression. In a plug construction of this type,

the fingers 22 are receivable in the depression 34, and the slot 20 is sufiiciently wideto provide ample clearance for the lugs 36, thus the fingers 22 take positions on opposite sides of the lugs 36 to constitute abutments for engagement with the fingers when the tool is rotated about the axis of the wrench member I8 through the application of turning forces on the handle l2. The wrench member I8 is of sufficient length to provide clearance for the handle [2, as when the tool is used in connection with drum structures of the type illustrated in Figure 3.

Figure 5 illustrates a screw plug 38 threaded into the drum neck 40. This plug is covered by a metal cap 42. In such constructions, the cap 42 may be ruptured by the cold chisel formation l4 to provide entrance for the wrench member l8.

Figures 8, 9 and 10 illustrate a second tool part 44, wherein a flat and generally rectangular metallic body 46 is provided with a bore 48 for the reception of the'handle l2, as in Figure 7.- The body 46 may be fixedly related to the handle l2 by a set screw 50 having its head 52 lying flush with the bottom face 54 of a recess 56 in one side edge of the bottom.

One end of the body 46 is provided with a recess 58vspaced to provide two fingers 60. The other end of the body 46 is provided with angular faces 62'onto opposite side edges. are arranged at angles of 45 degrees with respect to the side faces 64 of the body 46, and the faces on the opposite sides of the body converge slightly in the direction of each other to provide a tapered wrench end 66 of six sided contour.

Figure 11 illustrates one of thefingers 66 inserted in a square depression 68 in a screw cap or plug 10. Thus the finger 66 functions as a wrench element for coaction with a plug structure of the type shown. In Figure 12, the screw plug 12 is provided with a square nut formation 14, this formation being receivable in the slot. 58 so that the fingers may secure a grip on the nut formation. Screw plugs of the type illus- The faces 62 '58 .to engage the fingers 6D.

with hexagonally shaped flanges I6.

In Figure-l3, the screw cap or plug 18 is of the depressed type and is provided with a transverse web 80. This webis receivable in the slot screw cap or plug 82 includes a large nut formation 84, which formation isreceivable in the slot 56, so that the body 46 may have a .grip o n the nut formation when the formeris turned relatively to the latter.

In Figure 14, the

In Figures 15 and 16, the screw cap or plug 85.

is provided with a large depression 88 of square contour. The wrench formation BBjfits 'diagm nally in the depression 88, as in Figure 16,

whereby a wrench connection may be established between the formation 66 and the plug *Bfithrough rotation of the *body 46.

trated in Figures 11 and 12 are usuallyprovided is common practice to employ a hammer and a cold chisel for loosening the plugs. These plugs are usually so located as to make it diflicult to apply ordinary wrenches. Cold chisels cut and mar the closure plugs, and many accidents have been caused through the use of hammers and cold chisels. In the instant case, the tool is easily and quickly applied and operates efiiciently in the removal of various types of closures.

Without further elaboration, the foregoing will so fully explain my invention, that others may, by applying current knowledge, readily adapt the same for use under various conditions of service.

I claim: In a wrench of the type described, an elongated cylindrical body bar having an arm projecting transversely therefrom adjacent one end, a fiat Figure 6 illustrates a construction whereintlre screw cap or plug 90 includes an annular depression 92 and two inwardly extending lugs '94. The fingers B0 are adapted to engage the lugs 94 to function as a wrench. p r

h Good leverage for the body 46, is attained through the medium of the tool part [2.

The tool structure is so designed as to operate successfully on a large range of sizes and shapes. Considerable d'ifiiculty been experienced in removing closure plugs structures. It

elongated bar having a circular opening medially of its ends slidably mounted in transverse arrangement on the body bar and provided with a recess in its side adjacent the opening, a set screw at the bottom of the recess to engage the body bar to fix the fiat bar thereon, and-fa flattened head portion formed at one end of the flat bar and tapering outwardly and having V-shaped end portions at each end thereof, thebase of the head being of less width than the width of the flat bar to form shoulders. Y

FRANK J. TOMSEK. 

